Half Court Basketball Dimensions and the Perfect Fit for Your Space

Searching for half court basketball dimensions usually comes down to one question: how much room do I actually need?

A regulation NBA or college half court is 47 feet long by 50 feet wide. A high school half court is 42 feet by 50 feet. Most backyard half courts are smaller than either, commonly anywhere from about 30 x 30 feet up to the full 42 x 50 feet.

Below you'll find the official measurements for every level of play, a breakdown of the lines on a half court, and the HEXPRO Sport Tile half court kit sizes that fit real backyards. If your space doesn't match a standard size, we can build a custom layout to fit it.

Half Court Basketball Dimensions by Level

A half court keeps the full 50 foot width and covers one end of the court, from the baseline to the half court line. That works out to 2,350 square feet for NBA and college courts and 2,100 square feet for high school courts.

Those are big numbers for a backyard, which is why most home courts are built smaller than regulation.

Key Measurements on a Half Court

Every half court includes one complete end of the game, and a few measurements stay the same no matter the level of play:

• Hoop height: 10 feet at every level

• Backboard position: 4 feet in from the baseline

• Free throw line: 15 feet from the face of the backboard, which puts it 19 feet from the baseline

• Free throw circle: 6 foot radius, centered on the free throw line

• Lane (the key): 12 feet wide for college and high school, 16 feet wide for the NBA

• Three-point line: 19'9" for high school, 22'1¾" for college, and 23'9" for the NBA

Full Court Basketball Dimensions

If you're planning a full court instead, the numbers double up on length and keep the same width:

• NBA and college: 94 feet long by 50 feet wide (4,700 square feet)

• High school: 84 feet long by 50 feet wide (4,200 square feet)

The half court line sits at the exact center of the court, 47 feet from each baseline on an NBA or college court and 42 feet on a high school court.

Backyard Half Court Dimensions

Backyard half courts commonly run from about 30 x 30 feet up to a full 42 x 50 feet. The right size depends on the space you have and how you plan to play. A smaller court has plenty of room for shooting, free throws, and 1-on-1 games. More space gives you room for a wider key, a fuller three-point arc, and pickup games with a few more players.

A few things are worth planning around before you pick a size:

• Hoop placement. Pre-sized HEXPRO court kits are designed around an in-ground hoop with a 4 foot overhang, with the hoop's post positioned right at the court's baseline. CITY HOOPS height-adjustable systems also need at least 16 inches of clearance behind the anchor so the height-adjustment mechanism can operate properly.

• Space around the court. Leave open room around the sidelines and behind the baseline so players aren't running into a fence, wall, or tree. Even a few feet of run-off makes a court safer and more fun to play on.

• Site conditions. Slope, drainage, and nearby trees all affect how much usable space you really have, so measure the actual flat area before you commit to a size.

HEXPRO Half Court Kit Sizes

HEXPRO Sport Tiles by EIGHTYNINE Sports come in standard pre-determined half court kit sizes, with game lines included. Here are the sizes available right now:

Planning a full court? The full court kits come in four sizes:

• 36'4" x 66'4"

• 44'4" x 76'4"

• 50'4" x 84'4"

• 60'4" x 96'4" (regulation size)

Each kit is built for outdoor play and designed for all-weather performance, and installation can take as little as one hour.

Don't See Your Size? Build It Custom

Backyards don't come in standard sizes, and your court shouldn't have to either. Every HEXPRO court is assembled to order, so if your space calls for something different, our team can work with you on a custom size and layout that fits your exact dimensions. Contact our team with your measurements and we'll point you in the right direction.

You can also personalize your court with a number, team name, or company logo, built onto your court before it ships.

Half Court or Full Court: Which Should You Build?

A half court makes sense if:

• You're working with a backyard, driveway, or limited space

• You mostly shoot around, play 1-on-1, or run small pickup games

• You want to keep the project size and budget manageable

A full court makes sense if:

• You have roughly 4,200 square feet or more to work with

• You want full-game play with a baseline-to-baseline layout

• You're building for a school, park, or facility

Final Thoughts

The right half court dimensions come down to how you play and how much space you have. Regulation sizes are a helpful reference point, but a well-planned court that fits your yard will get a lot more use than one that's squeezed to match a rulebook.

DIY Court USA supplies HEXPRO Sport Tiles by EIGHTYNINE Sports in a range of standard half court and full court kit sizes, plus CITY HOOPS basketball hoops and hoop accessories, to help homeowners, contractors, schools, and facilities build a court that fits their space.

Frequently Asked Questions

What are the dimensions of a half court basketball court? A regulation NBA or college half court is 47 feet by 50 feet. A high school half court is 42 feet by 50 feet.

How many square feet is a half court? An NBA or college half court is 2,350 square feet, and a high school half court is 2,100 square feet.

How big is a backyard half court? Backyard half courts commonly range from about 30 x 30 feet up to a full 42 x 50 feet. HEXPRO half court kits range from 26'4" x 26'4" up to 60'4" x 30'4".

How far is the three-point line on a half court? It's 19 feet 9 inches for high school, 22 feet 1¾ inches for college, and 23 feet 9 inches for the NBA, measured from the center of the basket.

How far is the free throw line from the basket? The free throw line is 15 feet from the face of the backboard at every level of play, which puts it 19 feet from the baseline.

How wide is the key on a basketball court? The lane is 12 feet wide for college and high school courts and 16 feet wide for the NBA.

How high is a basketball hoop? Regulation hoop height is 10 feet at every level of play.

Can I get a half court in a custom size? Yes. Every HEXPRO court is assembled to order, so our team can work with you on a custom size and layout that fits your space.